They've been best friends for 20 years, and pop culture aficionados for even longer. Now, as moms of toddlers, Andie Mitchell and Sabrina Kohlberg are taking their obsession with TV and movies to the next level by talking to celebrities, writers and fellow “scholars” of pop culture about what they can learn from the fictional moms they love most. New from "Good Morning America" and ABC Audio, the first season of "Pop Culture Moms" posts weekly through May.